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Finding the Fourth Proportional to 75,310.36, 103,928.42 and 41,776.36

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Solution

The fourth proportional to 75,310.36, 103,928.42 and 41,776.36 is: 57,651.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,310.36 : 103,928.42 = 41,776.36 : x
  2. Step 2: Convert to fraction form
    75,310.36/103,928.42 = 41,776.36/x
  3. Step 3: Cross multiply
    75,310.36x = 103,928.42 × 41,776.36
  4. Step 4: Simplify right side
    75,310.36x = 4,341,751,088.15
  5. Step 5: Solve for x
    x = 4,341,751,088.15/75,310.36
  6. Step 6: Final answer
    x = 57,651.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.